/*
 * @BEGIN LICENSE
 *
 * Psi4: an open-source quantum chemistry software package
 *
 * Copyright (c) 2007-2025 The Psi4 Developers.
 *
 * The copyrights for code used from other parties are included in
 * the corresponding files.
 *
 * This file is part of Psi4.
 *
 * Psi4 is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, version 3.
 *
 * Psi4 is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with Psi4; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * @END LICENSE
 */

/*! \file
    \ingroup CCDENSITY
    \brief Enter brief description of file here
*/
#include <cstdio>
#include "psi4/libdpd/dpd.h"
#include "MOInfo.h"
#include "Params.h"
#include "Frozen.h"
#define EXTERN
#include "globals.h"

namespace psi {
namespace ccdensity {

void x_Gciab_rohf();
void x_Gciab_6();
void x_Gciab_7();
void x_Gciab_8_rohf();
extern void x_Gciab_uhf();

/* This function computes the non-R0 parts of the 2pdm density matrix
   Gciab = 0.5 *(rho_abci + rho_ciab) */
void x_Gciab() {
    if (params.ref == 0 || params.ref == 1)
        x_Gciab_rohf();
    else
        x_Gciab_uhf();
}

void x_Gciab_rohf() {
    int h, nirreps, i, j, k, a, I, J, K, A, Isym, Jsym, Ksym, Asym, row, col;
    int II, JJ, IIsym, JJsym;
    int L_irr, R_irr, G_irr;
    double value;
    dpdfile2 L1, T1, R1, I1;
    dpdbuf4 G, V, T, L, Z, Z2, R, Tau;

    L_irr = params.L_irr;
    R_irr = params.R_irr;
    G_irr = params.G_irr;
    nirreps = moinfo.nirreps;

    /* term 1, rho_abci += Lmiab * Rmc */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP, G_irr, 7, 11, 7, 11, 0, "L2R1_VVOV(pqsr)");
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP0, rspq, 11, 7, "GCIAB");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP, G_irr, 7, 11, 7, 11, 0, "L2R1_vvov(pqsr)");
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP0, rspq, 11, 7, "Gciab");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP, G_irr, 5, 11, 5, 11, 0, "L2R1_VvoV(pqsr)");
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP0, rspq, 11, 5, "GCiAb");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP, G_irr, 5, 11, 5, 11, 0, "L2R1_VvOv(pqsr)");
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP0, rsqp, 11, 5, "GcIaB");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "GCIAB");
    global_dpd_->buf4_scm(&Z, -1.0);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "Gciab");
    global_dpd_->buf4_scm(&Z, -1.0);
    global_dpd_->buf4_close(&Z);

    /* term 2, rho_ciab += Rmiab * Lmc */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP, G_irr, 7, 11, 7, 11, 0, "R2L1_VVOV(pqsr)");
    global_dpd_->buf4_sort_axpy(&Z, PSIF_EOM_TMP0, rspq, 11, 7, "GCIAB", -1.0);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP, G_irr, 7, 11, 7, 11, 0, "R2L1_vvov(pqsr)");
    global_dpd_->buf4_sort_axpy(&Z, PSIF_EOM_TMP0, rspq, 11, 7, "Gciab", -1.0);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP, G_irr, 5, 11, 5, 11, 0, "R2L1_VvoV(pqsr)");
    global_dpd_->buf4_sort_axpy(&Z, PSIF_EOM_TMP0, rspq, 11, 5, "GCiAb", 1.0);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP, G_irr, 5, 11, 5, 11, 0, "R2L1_VvOv(pqsr)");
    global_dpd_->buf4_sort_axpy(&Z, PSIF_EOM_TMP0, rsqp, 11, 5, "GcIaB", 1.0);
    global_dpd_->buf4_close(&Z);
    /* same in two-steps, perhaps suggestive of future out-of-core approach
    dpd_buf4_init(&G, EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "GCIAB");
    dpd_buf4_init(&Z, EOM_TMP1, G_irr, 11, 7, 11, 7, 0, "GCIAB");
    dpd_buf4_axpy(&Z, &G, -1.0);
    dpd_buf4_close(&Z);
    dpd_buf4_close(&G);
    dpd_buf4_init(&G, EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "Gciab");
    dpd_buf4_init(&Z, EOM_TMP1, G_irr, 11, 7, 11, 7, 0, "Gciab");
    dpd_buf4_axpy(&Z, &G, -1.0);
    dpd_buf4_close(&Z);
    dpd_buf4_close(&G);
    dpd_buf4_init(&G, EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    dpd_buf4_init(&Z, EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    dpd_buf4_axpy(&Z, &G, 1.0);
    dpd_buf4_close(&Z);
    dpd_buf4_close(&G);
    dpd_buf4_init(&G, EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    dpd_buf4_init(&Z, EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    dpd_buf4_axpy(&Z, &G, 1.0);
    dpd_buf4_close(&Z);
    dpd_buf4_close(&G);
    psio_close(EOM_TMP1,0);
    psio_open(EOM_TMP1, PSIO_OPEN_NEW);
    */

    /* term 3, rho_CIAB -= 0.5 LMNCE RMNAB tIE */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 11, 2, 11, 2, 0, "Z(CI,MN)");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 2, 5, 2, 7, 0, "LIJAB");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "GCIAB");
    global_dpd_->buf4_init(&R, PSIF_CC_GR, R_irr, 2, 7, 2, 7, 0, "RIJAB");
    global_dpd_->contract444(&Z, &R, &G, 0, 1, -1.0, 1.0);
    global_dpd_->buf4_close(&R);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 3, rho_ciab -= 0.5 Lmnce Rmnab tie */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 11, 2, 11, 2, 0, "Z(ci,mn)");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 2, 5, 2, 7, 0, "Lijab");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "Gciab");
    global_dpd_->buf4_init(&R, PSIF_CC_GR, R_irr, 2, 7, 2, 7, 0, "Rijab");
    global_dpd_->contract444(&Z, &R, &G, 0, 1, -1.0, 1.0);
    global_dpd_->buf4_close(&R);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 3, rho_CiAb -= 0.5 LMnCe RMnAb tie */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 11, 0, 11, 0, 0, "Z(Ci,Mn)");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 0, 5, 0, 5, 0, "LIjAb");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->buf4_init(&R, PSIF_CC_GR, R_irr, 0, 5, 0, 5, 0, "RIjAb");
    global_dpd_->contract444(&Z, &R, &G, 0, 1, -1.0, 1.0);
    global_dpd_->buf4_close(&R);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 3, rho_cIaB -= 0.5 LmNcE RmNaB tIE */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 11, 0, 11, 0, 0, "Z(cI,mN)");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 0, 5, 0, 5, 0, "LiJaB");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->buf4_init(&R, PSIF_CC_GR, R_irr, 0, 5, 0, 5, 0, "RiJaB");
    global_dpd_->contract444(&Z, &R, &G, 0, 1, -1.0, 1.0);
    global_dpd_->buf4_close(&R);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);

    psio_close(PSIF_EOM_TMP1, 0);
    psio_open(PSIF_EOM_TMP1, PSIO_OPEN_NEW);

    /* term 4, rho_CIAB -= 0.5 LMNCE TauMNAB RIE */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 2, 11, 2, 0, "Z(CI,MN)");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 2, 5, 2, 7, 0, "LIJAB");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "RIA");
    global_dpd_->contract424(&L, &R1, &Z, 3, 1, 1, 1.0, 0.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "GCIAB");
    global_dpd_->buf4_init(&T, PSIF_CC_TAMPS, 0, 2, 7, 2, 7, 0, "tauIJAB");
    global_dpd_->contract444(&Z, &T, &G, 0, 1, -1.0, 1.0);
    global_dpd_->buf4_close(&T);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 4, rho_ciab -= 0.5 Lmnce Taumnab Rie */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 2, 11, 2, 0, "Z(ci,mn)");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 2, 5, 2, 7, 0, "Lijab");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "Ria");
    global_dpd_->contract424(&L, &R1, &Z, 3, 1, 1, 1.0, 0.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "Gciab");
    global_dpd_->buf4_init(&T, PSIF_CC_TAMPS, 0, 2, 7, 2, 7, 0, "tauijab");
    global_dpd_->contract444(&Z, &T, &G, 0, 1, -1.0, 1.0);
    global_dpd_->buf4_close(&T);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 4, rho_CiAb -= 0.5 LMnCe TauMnAb Rie */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 0, 11, 0, 0, "Z(Ci,Mn)");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 0, 5, 0, 5, 0, "LIjAb");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "Ria");
    global_dpd_->contract424(&L, &R1, &Z, 3, 1, 1, 1.0, 0.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->buf4_init(&T, PSIF_CC_TAMPS, 0, 0, 5, 0, 5, 0, "tauIjAb");
    global_dpd_->contract444(&Z, &T, &G, 0, 1, -1.0, 1.0);
    global_dpd_->buf4_close(&T);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 4, rho_cIaB -= 0.5 LmNcE TaumNaB RIE */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 0, 11, 0, 0, "Z(cI,mN)");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 0, 5, 0, 5, 0, "LiJaB");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "RIA");
    global_dpd_->contract424(&L, &R1, &Z, 3, 1, 1, 1.0, 0.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->buf4_init(&T, PSIF_CC_TAMPS, 0, 0, 5, 0, 5, 0, "tauiJaB");
    global_dpd_->contract444(&Z, &T, &G, 0, 1, -1.0, 1.0);
    global_dpd_->buf4_close(&T);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);

    /* term 5, rho_ciab += - (Lmnec Rme) (Tniab + P(ij) Tna Tib) */
    if (!params.connect_xi) {
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "GCIAB");
        global_dpd_->buf4_init(&Tau, PSIF_CC_TAMPS, 0, 0, 7, 2, 7, 0, "tauIJAB");
        global_dpd_->file2_init(&I1, PSIF_EOM_TMP, G_irr, 0, 1, "L2R1_OV");
        global_dpd_->contract244(&I1, &Tau, &G, 0, 0, 0, 1.0, 1.0);
        global_dpd_->file2_close(&I1);
        global_dpd_->buf4_close(&Tau);
        global_dpd_->buf4_close(&G);
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "Gciab");
        global_dpd_->buf4_init(&Tau, PSIF_CC_TAMPS, 0, 0, 7, 2, 7, 0, "tauijab");
        global_dpd_->file2_init(&I1, PSIF_EOM_TMP, G_irr, 0, 1, "L2R1_ov");
        global_dpd_->contract244(&I1, &Tau, &G, 0, 0, 0, 1.0, 1.0);
        global_dpd_->file2_close(&I1);
        global_dpd_->buf4_close(&Tau);
        global_dpd_->buf4_close(&G);
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
        global_dpd_->buf4_init(&Tau, PSIF_CC_TAMPS, 0, 0, 5, 0, 5, 0, "tauIjAb");
        global_dpd_->file2_init(&I1, PSIF_EOM_TMP, G_irr, 0, 1, "L2R1_OV");
        global_dpd_->contract244(&I1, &Tau, &G, 0, 0, 0, 1.0, 1.0);
        global_dpd_->file2_close(&I1);
        global_dpd_->buf4_close(&Tau);
        global_dpd_->buf4_close(&G);
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
        global_dpd_->buf4_init(&Tau, PSIF_CC_TAMPS, 0, 0, 5, 0, 5, 0, "tauiJaB");
        global_dpd_->file2_init(&I1, PSIF_EOM_TMP, G_irr, 0, 1, "L2R1_ov");
        global_dpd_->contract244(&I1, &Tau, &G, 0, 0, 0, 1.0, 1.0);
        global_dpd_->file2_close(&I1);
        global_dpd_->buf4_close(&Tau);
        global_dpd_->buf4_close(&G);
    }

    /* +P(ab) LR_VV(c,a) t(i,b) */
    x_Gciab_6();

    /* +P(ab) LR_TT(c,a) R(i,b) */
    x_Gciab_7();

    /* -P(ab) Lmnce Rinae Tmb, term 8 */
    /* -P(ab) Lmnce Tinae Rmb, term 9 */
    x_Gciab_8_rohf();

    psio_close(PSIF_EOM_TMP1, 0);
    psio_open(PSIF_EOM_TMP1, PSIO_OPEN_NEW);

    /* term 10, -P(AB) LNMCE TIE TNA RMB */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 2, 11, 2, 11, 0, "Z(NM,CI)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 2, 5, 2, 7, 0, "LIJAB");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 0, 1.0, 0.0);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 0, 11, 2, 11, 0, "Z(NM,CI)");
    global_dpd_->buf4_init(&Z2, PSIF_EOM_TMP1, L_irr, 11, 11, 11, 11, 0, "Z(CI,AM)");
    global_dpd_->contract244(&T1, &Z, &Z2, 0, 0, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(CI,AB)");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "RIA");
    global_dpd_->contract424(&Z2, &R1, &Z, 3, 0, 0, 1.0, 0.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&Z2);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "GCIAB");
    global_dpd_->buf4_axpy(&Z, &G, -1.0);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, pqsr, 11, 5, "Z(CI,BA)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(CI,BA)");
    global_dpd_->buf4_axpy(&Z, &G, 1.0);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_close(&G);

    /* term 10, -P(ab) lmnce tie tna rmb */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 2, 11, 2, 11, 0, "Z(nm,ci)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 2, 5, 2, 7, 0, "Lijab");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 0, 1.0, 0.0);
    global_dpd_->buf4_close(&L);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 0, 11, 2, 11, 0, "Z(nm,ci)");
    global_dpd_->buf4_init(&Z2, PSIF_EOM_TMP1, L_irr, 11, 11, 11, 11, 0, "Z(ci,am)");
    global_dpd_->contract244(&T1, &Z, &Z2, 0, 0, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(ci,ab)");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "Ria");
    global_dpd_->contract424(&Z2, &R1, &Z, 3, 0, 0, 1.0, 0.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&Z2);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "Gciab");
    global_dpd_->buf4_axpy(&Z, &G, -1.0);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, pqsr, 11, 5, "Z(ci,ba)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(ci,ba)");
    global_dpd_->buf4_axpy(&Z, &G, 1.0);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_close(&G);

    /* term 10, GCiAb -= P(AB) LNmCe Tie TNA Rmb */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 0, 11, 0, 11, 0, "Z(Nm,Ci)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 0, 5, 0, 5, 0, "LIjAb");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 0, 1.0, 0.0);
    global_dpd_->buf4_close(&L);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_init(&Z2, PSIF_EOM_TMP1, L_irr, 11, 11, 11, 11, 0, "Z(Ci,Am)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->contract244(&T1, &Z, &Z2, 0, 0, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "Ria");
    global_dpd_->contract424(&Z2, &R1, &G, 3, 0, 0, -1.0, 1.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&Z2);
    global_dpd_->buf4_close(&G);

    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 0, 11, 0, 11, 0, "Z(nM,Ci)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 0, 5, 0, 5, 0, "LiJAb");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 0, 1.0, 0.0);
    global_dpd_->buf4_close(&L);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_init(&Z2, PSIF_EOM_TMP1, L_irr, 11, 11, 11, 11, 0, "Z(Ci,bM)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->contract244(&T1, &Z, &Z2, 0, 0, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(Ci,bA)");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "RIA");
    global_dpd_->contract424(&Z2, &R1, &Z, 3, 0, 0, 1.0, 0.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&Z2);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, pqsr, 11, 5, "Z(Ci,Ab)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(Ci,Ab)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->buf4_axpy(&Z, &G, -1.0);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_close(&G);

    /* term 10, GcIaB - LnMcE TIE Tna RMB + LNmcE TIE TNB Rma */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 0, 11, 0, 11, 0, "Z(nM,cI)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 0, 5, 0, 5, 0, "LiJaB");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 0, 1.0, 0.0);
    global_dpd_->buf4_close(&L);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_init(&Z2, PSIF_EOM_TMP1, L_irr, 11, 11, 11, 11, 0, "Z(cI,aM)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->contract244(&T1, &Z, &Z2, 0, 0, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "RIA");
    global_dpd_->contract424(&Z2, &R1, &G, 3, 0, 0, -1.0, 1.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&Z2);
    global_dpd_->buf4_close(&G);

    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 0, 11, 0, 11, 0, "Z(Nm,cI)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->buf4_init(&L, PSIF_CC_GL, L_irr, 0, 5, 0, 5, 0, "LIjaB");
    global_dpd_->contract424(&L, &T1, &Z, 3, 1, 0, 1.0, 0.0);
    global_dpd_->buf4_close(&L);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_init(&Z2, PSIF_EOM_TMP1, L_irr, 11, 11, 11, 11, 0, "Z(cI,Bm)");
    global_dpd_->file2_init(&T1, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->contract244(&T1, &Z, &Z2, 0, 0, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(cI,Ba)");
    global_dpd_->file2_init(&R1, PSIF_CC_GR, R_irr, 0, 1, "Ria");
    global_dpd_->contract424(&Z2, &R1, &Z, 3, 0, 0, 1.0, 0.0);
    global_dpd_->file2_close(&R1);
    global_dpd_->buf4_close(&Z2);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, pqsr, 11, 5, "Z(cI,aB)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(cI,aB)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->buf4_axpy(&Z, &G, -1.0);
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_close(&G);

    /* add 1/2 to ground-state parts of density */
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "GCIAB");
    global_dpd_->buf4_init(&V, PSIF_CC_GAMMA, G_irr, 11, 7, 11, 7, 0, "GCIAB");
    global_dpd_->buf4_axpy(&G, &V, 0.5);
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 7, 11, 7, 0, "Gciab");
    global_dpd_->buf4_init(&V, PSIF_CC_GAMMA, G_irr, 11, 7, 11, 7, 0, "Gciab");
    global_dpd_->buf4_axpy(&G, &V, 0.5);
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->buf4_init(&V, PSIF_CC_GAMMA, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->buf4_axpy(&G, &V, 0.5);
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->buf4_init(&V, PSIF_CC_GAMMA, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->buf4_axpy(&G, &V, 0.5);
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_close(&G);

    /* clear out temporary files */
    psio_close(PSIF_EOM_TMP0, 0);
    psio_open(PSIF_EOM_TMP0, PSIO_OPEN_NEW);

    /*
    dpd_buf4_init(&V, CC_GAMMA, G_irr, 11, 7, 11, 7, 0, "GCIAB");
    value = dpd_buf4_dot_self(&V);
    dpd_buf4_close(&V);
    dpd_buf4_init(&V, CC_GAMMA, G_irr, 11, 7, 11, 7, 0, "Gciab");
    value += dpd_buf4_dot_self(&V);
    dpd_buf4_close(&V);
    dpd_buf4_init(&V, CC_GAMMA, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    value += dpd_buf4_dot_self(&V);
    dpd_buf4_close(&V);
    dpd_buf4_init(&V, CC_GAMMA, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    value += dpd_buf4_dot_self(&V);
    dpd_buf4_close(&V);
    outfile->Printf("<Gciab|Gciab> = %15.10lf\n",value);
    */
}

/* This function computes term 6,
   rho_ciab += P(ab) LR1_VV(c,a) T(i,b)
*/

void x_Gciab_6() {
    int h, nirreps, c, i, a, b, C, I, A, B, Csym, Isym, Asym, Bsym, row, col;
    int AA, BB, AAsym, BBsym;
    int L_irr, R_irr, G_irr;
    dpdfile2 LR1A, LR1B, T1A, T1B;
    dpdbuf4 G;

    L_irr = params.L_irr;
    R_irr = params.R_irr;
    G_irr = params.G_irr;
    nirreps = moinfo.nirreps;

    /* open one-electron files for the nasty terms */
    global_dpd_->file2_init(&LR1A, PSIF_EOM_TMP, G_irr, 1, 1, "LR_VV");
    global_dpd_->file2_init(&T1A, PSIF_CC_OEI, 0, 0, 1, "tIA");
    if (params.ref == 0 || params.ref == 1) {
        global_dpd_->file2_init(&LR1B, PSIF_EOM_TMP, G_irr, 1, 1, "LR_vv");
        global_dpd_->file2_init(&T1B, PSIF_CC_OEI, 0, 0, 1, "tia");
    } else {
        global_dpd_->file2_init(&LR1B, PSIF_EOM_TMP, G_irr, 3, 3, "LR_vv");
        global_dpd_->file2_init(&T1B, PSIF_CC_OEI, 0, 2, 3, "tia");
    }
    global_dpd_->file2_mat_init(&T1A);
    global_dpd_->file2_mat_init(&T1B);
    global_dpd_->file2_mat_init(&LR1A);
    global_dpd_->file2_mat_init(&LR1B);
    global_dpd_->file2_mat_rd(&T1A);
    global_dpd_->file2_mat_rd(&T1B);
    global_dpd_->file2_mat_rd(&LR1A);
    global_dpd_->file2_mat_rd(&LR1B);

    /* rho_CIAB += LR1_VV(C,A) T(I,B) - LR1_VV(C,B) T(I,A) */
    if (params.ref == 0 || params.ref == 1)
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "GCIAB");
    else
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 21, 5, 21, 7, 0, "GCIAB");
    for (h = 0; h < nirreps; h++) {
        global_dpd_->buf4_mat_irrep_init(&G, h);
        global_dpd_->buf4_mat_irrep_rd(&G, h);
        for (row = 0; row < G.params->rowtot[h]; row++) {
            c = G.params->roworb[h][row][0];
            i = G.params->roworb[h][row][1];
            C = LR1A.params->rowidx[c];
            Csym = LR1A.params->psym[c];
            I = T1A.params->rowidx[i];
            Isym = T1A.params->psym[i];
            for (col = 0; col < G.params->coltot[h]; col++) {
                a = G.params->colorb[h ^ G_irr][col][0];
                b = G.params->colorb[h ^ G_irr][col][1];
                A = LR1A.params->colidx[a];
                Asym = LR1A.params->qsym[a];
                B = T1A.params->colidx[b];
                Bsym = T1A.params->qsym[b];
                AA = T1A.params->colidx[a];
                AAsym = T1A.params->qsym[a];
                BB = LR1A.params->colidx[b];
                BBsym = LR1A.params->qsym[b];
                if (((Csym ^ Asym) == G_irr) && (Isym == Bsym))
                    G.matrix[h][row][col] += LR1A.matrix[Csym][C][A] * T1A.matrix[Isym][I][B];
                if (((Csym ^ BBsym) == G_irr) && (Isym == AAsym))
                    G.matrix[h][row][col] -= LR1A.matrix[Csym][C][BB] * T1A.matrix[Isym][I][AA];
            }
        }
        global_dpd_->buf4_mat_irrep_wrt(&G, h);
        global_dpd_->buf4_mat_irrep_close(&G, h);
    }
    global_dpd_->buf4_close(&G);
    /* rho_ciab += LR1_vv(c,a) T(i,b) - LR1_vv(c,b) T(i,a) */
    if (params.ref == 0 || params.ref == 1)
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "Gciab");
    else
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 31, 15, 31, 17, 0, "Gciab");
    for (h = 0; h < nirreps; h++) {
        global_dpd_->buf4_mat_irrep_init(&G, h);
        global_dpd_->buf4_mat_irrep_rd(&G, h);
        for (row = 0; row < G.params->rowtot[h]; row++) {
            c = G.params->roworb[h][row][0];
            i = G.params->roworb[h][row][1];
            C = LR1B.params->rowidx[c];
            Csym = LR1B.params->psym[c];
            I = T1B.params->rowidx[i];
            Isym = T1B.params->psym[i];
            for (col = 0; col < G.params->coltot[h ^ G_irr]; col++) {
                a = G.params->colorb[h ^ G_irr][col][0];
                b = G.params->colorb[h ^ G_irr][col][1];
                A = LR1B.params->colidx[a];
                Asym = LR1B.params->qsym[a];
                B = T1B.params->colidx[b];
                Bsym = T1B.params->qsym[b];
                AA = T1B.params->colidx[a];
                AAsym = T1B.params->qsym[a];
                BB = LR1B.params->colidx[b];
                BBsym = LR1B.params->qsym[b];
                if (((Csym ^ Asym) == G_irr) && (Isym == Bsym))
                    G.matrix[h][row][col] += LR1B.matrix[Csym][C][A] * T1B.matrix[Isym][I][B];
                if (((Csym ^ BBsym) == G_irr) && (Isym == AAsym))
                    G.matrix[h][row][col] -= LR1B.matrix[Csym][C][BB] * T1B.matrix[Isym][I][AA];
            }
        }
        global_dpd_->buf4_mat_irrep_wrt(&G, h);
        global_dpd_->buf4_mat_irrep_close(&G, h);
    }
    global_dpd_->buf4_close(&G);
    /* rho_CiAb += LR1_VV(C,A) T(i,b) */
    if (params.ref == 0 || params.ref == 1)
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    else
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 26, 28, 26, 28, 0, "GCiAb");
    for (h = 0; h < nirreps; h++) {
        global_dpd_->buf4_mat_irrep_init(&G, h);
        global_dpd_->buf4_mat_irrep_rd(&G, h);
        for (row = 0; row < G.params->rowtot[h]; row++) {
            c = G.params->roworb[h][row][0];
            i = G.params->roworb[h][row][1];
            C = LR1A.params->rowidx[c];
            Csym = LR1A.params->psym[c];
            I = T1B.params->rowidx[i];
            Isym = T1B.params->psym[i];
            for (col = 0; col < G.params->coltot[h ^ G_irr]; col++) {
                a = G.params->colorb[h ^ G_irr][col][0];
                b = G.params->colorb[h ^ G_irr][col][1];
                A = LR1A.params->colidx[a];
                Asym = LR1A.params->qsym[a];
                B = T1B.params->colidx[b];
                Bsym = T1B.params->qsym[b];
                if (((Csym ^ Asym) == G_irr) && (Isym == Bsym))
                    G.matrix[h][row][col] += LR1A.matrix[Csym][C][A] * T1B.matrix[Isym][I][B];
            }
        }
        global_dpd_->buf4_mat_irrep_wrt(&G, h);
        global_dpd_->buf4_mat_irrep_close(&G, h);
    }
    global_dpd_->buf4_close(&G);
    /* rho_cIaB += LR1_vv(c,a) T(I,B) */
    if (params.ref == 0 || params.ref == 1)
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    else
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 25, 29, 25, 29, 0, "GcIaB");
    for (h = 0; h < nirreps; h++) {
        global_dpd_->buf4_mat_irrep_init(&G, h);
        global_dpd_->buf4_mat_irrep_rd(&G, h);
        for (row = 0; row < G.params->rowtot[h]; row++) {
            c = G.params->roworb[h][row][0];
            i = G.params->roworb[h][row][1];
            C = LR1B.params->rowidx[c];
            Csym = LR1B.params->psym[c];
            I = T1A.params->rowidx[i];
            Isym = T1A.params->psym[i];
            for (col = 0; col < G.params->coltot[h ^ G_irr]; col++) {
                a = G.params->colorb[h ^ G_irr][col][0];
                b = G.params->colorb[h ^ G_irr][col][1];
                A = LR1B.params->colidx[a];
                Asym = LR1B.params->qsym[a];
                B = T1A.params->colidx[b];
                Bsym = T1A.params->qsym[b];
                if (((Csym ^ Asym) == G_irr) && (Isym == Bsym))
                    G.matrix[h][row][col] += LR1B.matrix[Csym][C][A] * T1A.matrix[Isym][I][B];
            }
        }
        global_dpd_->buf4_mat_irrep_wrt(&G, h);
        global_dpd_->buf4_mat_irrep_close(&G, h);
    }
    global_dpd_->buf4_close(&G);

    global_dpd_->file2_mat_close(&LR1A);
    global_dpd_->file2_mat_close(&LR1B);
    global_dpd_->file2_close(&LR1A);
    global_dpd_->file2_close(&LR1B);

    global_dpd_->file2_mat_close(&T1A);
    global_dpd_->file2_mat_close(&T1B);
    global_dpd_->file2_close(&T1A);
    global_dpd_->file2_close(&T1B);

    return;
}

/* This function computes term 7,
   rho_ciab += P(ab) LT_VV(c,a) R(i,b)
*/

void x_Gciab_7() {
    int h, nirreps, c, i, a, b, C, I, A, B, Csym, Isym, Asym, Bsym, row, col;
    int AA, BB, AAsym, BBsym;
    int L_irr, R_irr, G_irr;
    dpdfile2 LT1A, LT1B, R1A, R1B;
    dpdbuf4 G;

    L_irr = params.L_irr;
    R_irr = params.R_irr;
    G_irr = params.G_irr;
    nirreps = moinfo.nirreps;

    /* open one-electron files for the nasty terms */
    global_dpd_->file2_init(&LT1A, PSIF_EOM_TMP, L_irr, 1, 1, "LT_VV");
    global_dpd_->file2_init(&R1A, PSIF_CC_GR, R_irr, 0, 1, "RIA");
    if (params.ref == 0 || params.ref == 1) {
        global_dpd_->file2_init(&LT1B, PSIF_EOM_TMP, L_irr, 1, 1, "LT_vv");
        global_dpd_->file2_init(&R1B, PSIF_CC_GR, R_irr, 0, 1, "Ria");
    } else {
        global_dpd_->file2_init(&LT1B, PSIF_EOM_TMP, L_irr, 3, 3, "LT_vv");
        global_dpd_->file2_init(&R1B, PSIF_CC_GR, R_irr, 2, 3, "Ria");
    }
    global_dpd_->file2_mat_init(&R1A);
    global_dpd_->file2_mat_init(&R1B);
    global_dpd_->file2_mat_init(&LT1A);
    global_dpd_->file2_mat_init(&LT1B);
    global_dpd_->file2_mat_rd(&R1A);
    global_dpd_->file2_mat_rd(&R1B);
    global_dpd_->file2_mat_rd(&LT1A);
    global_dpd_->file2_mat_rd(&LT1B);

    /* rho_CIAB += LT_VV(C,A) R(I,B) - LT_VV(C,B) R(I,A) */
    if (params.ref == 0 || params.ref == 1)
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "GCIAB");
    else
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 21, 5, 21, 7, 0, "GCIAB");
    for (h = 0; h < nirreps; h++) {
        global_dpd_->buf4_mat_irrep_init(&G, h);
        global_dpd_->buf4_mat_irrep_rd(&G, h);
        for (row = 0; row < G.params->rowtot[h]; row++) {
            c = G.params->roworb[h][row][0];
            i = G.params->roworb[h][row][1];
            C = LT1A.params->rowidx[c];
            Csym = LT1A.params->psym[c];
            I = R1A.params->rowidx[i];
            Isym = R1A.params->psym[i];
            for (col = 0; col < G.params->coltot[h ^ G_irr]; col++) {
                a = G.params->colorb[h ^ G_irr][col][0];
                b = G.params->colorb[h ^ G_irr][col][1];
                A = LT1A.params->colidx[a];
                Asym = LT1A.params->qsym[a];
                B = R1A.params->colidx[b];
                Bsym = R1A.params->qsym[b];
                AA = R1A.params->colidx[a];
                AAsym = R1A.params->qsym[a];
                BB = LT1A.params->colidx[b];
                BBsym = LT1A.params->qsym[b];
                if (((Csym ^ Asym) == L_irr) && ((Isym ^ Bsym) == R_irr))
                    G.matrix[h][row][col] += LT1A.matrix[Csym][C][A] * R1A.matrix[Isym][I][B];
                if (((Csym ^ BBsym) == L_irr) && ((Isym ^ AAsym) == R_irr))
                    G.matrix[h][row][col] -= LT1A.matrix[Csym][C][BB] * R1A.matrix[Isym][I][AA];
            }
        }
        global_dpd_->buf4_mat_irrep_wrt(&G, h);
        global_dpd_->buf4_mat_irrep_close(&G, h);
    }
    global_dpd_->buf4_close(&G);
    /* rho_ciab += LT_vv(c,a) R(i,b) - LT_vv(c,b) R(i,a) */
    if (params.ref == 0 || params.ref == 1)
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "Gciab");
    else
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 31, 15, 31, 17, 0, "Gciab");
    for (h = 0; h < nirreps; h++) {
        global_dpd_->buf4_mat_irrep_init(&G, h);
        global_dpd_->buf4_mat_irrep_rd(&G, h);
        for (row = 0; row < G.params->rowtot[h]; row++) {
            c = G.params->roworb[h][row][0];
            i = G.params->roworb[h][row][1];
            C = LT1B.params->rowidx[c];
            Csym = LT1B.params->psym[c];
            I = R1B.params->rowidx[i];
            Isym = R1B.params->psym[i];
            for (col = 0; col < G.params->coltot[h ^ G_irr]; col++) {
                a = G.params->colorb[h ^ G_irr][col][0];
                b = G.params->colorb[h ^ G_irr][col][1];
                A = LT1B.params->colidx[a];
                Asym = LT1B.params->qsym[a];
                B = R1B.params->colidx[b];
                Bsym = R1B.params->qsym[b];
                AA = R1B.params->colidx[a];
                AAsym = R1B.params->qsym[a];
                BB = LT1B.params->colidx[b];
                BBsym = LT1B.params->qsym[b];
                if (((Csym ^ Asym) == L_irr) && ((Isym ^ Bsym) == R_irr))
                    G.matrix[h][row][col] += LT1B.matrix[Csym][C][A] * R1B.matrix[Isym][I][B];
                if (((Csym ^ BBsym) == L_irr) && ((Isym ^ AAsym) == R_irr))
                    G.matrix[h][row][col] -= LT1B.matrix[Csym][C][BB] * R1B.matrix[Isym][I][AA];
            }
        }
        global_dpd_->buf4_mat_irrep_wrt(&G, h);
        global_dpd_->buf4_mat_irrep_close(&G, h);
    }
    global_dpd_->buf4_close(&G);
    /* rho_CiAb += LT_VV(C,A) R(i,b) */
    if (params.ref == 0 || params.ref == 1)
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    else
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 26, 28, 26, 28, 0, "GCiAb");
    for (h = 0; h < nirreps; h++) {
        global_dpd_->buf4_mat_irrep_init(&G, h);
        global_dpd_->buf4_mat_irrep_rd(&G, h);
        for (row = 0; row < G.params->rowtot[h]; row++) {
            c = G.params->roworb[h][row][0];
            i = G.params->roworb[h][row][1];
            C = LT1A.params->rowidx[c];
            Csym = LT1A.params->psym[c];
            I = R1B.params->rowidx[i];
            Isym = R1B.params->psym[i];
            for (col = 0; col < G.params->coltot[h ^ G_irr]; col++) {
                a = G.params->colorb[h ^ G_irr][col][0];
                b = G.params->colorb[h ^ G_irr][col][1];
                A = LT1A.params->colidx[a];
                Asym = LT1A.params->qsym[a];
                B = R1B.params->colidx[b];
                Bsym = R1B.params->qsym[b];
                if (((Csym ^ Asym) == L_irr) && ((Isym ^ Bsym) == R_irr))
                    G.matrix[h][row][col] += LT1A.matrix[Csym][C][A] * R1B.matrix[Isym][I][B];
            }
        }
        global_dpd_->buf4_mat_irrep_wrt(&G, h);
        global_dpd_->buf4_mat_irrep_close(&G, h);
    }
    global_dpd_->buf4_close(&G);
    /* rho_cIaB += LT_vv(c,a) R(I,B) */
    if (params.ref == 0 || params.ref == 1)
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    else
        global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 25, 29, 25, 29, 0, "GcIaB");
    for (h = 0; h < nirreps; h++) {
        global_dpd_->buf4_mat_irrep_init(&G, h);
        global_dpd_->buf4_mat_irrep_rd(&G, h);
        for (row = 0; row < G.params->rowtot[h]; row++) {
            c = G.params->roworb[h][row][0];
            i = G.params->roworb[h][row][1];
            C = LT1B.params->rowidx[c];
            Csym = LT1B.params->psym[c];
            I = R1A.params->rowidx[i];
            Isym = R1A.params->psym[i];
            for (col = 0; col < G.params->coltot[h ^ G_irr]; col++) {
                a = G.params->colorb[h ^ G_irr][col][0];
                b = G.params->colorb[h ^ G_irr][col][1];
                A = LT1B.params->colidx[a];
                Asym = LT1B.params->qsym[a];
                B = R1A.params->colidx[b];
                Bsym = R1A.params->qsym[b];
                if (((Csym ^ Asym) == L_irr) && ((Isym ^ Bsym) == R_irr))
                    G.matrix[h][row][col] += LT1B.matrix[Csym][C][A] * R1A.matrix[Isym][I][B];
            }
        }
        global_dpd_->buf4_mat_irrep_wrt(&G, h);
        global_dpd_->buf4_mat_irrep_close(&G, h);
    }
    global_dpd_->buf4_close(&G);

    global_dpd_->file2_mat_close(&LT1A);
    global_dpd_->file2_mat_close(&LT1B);
    global_dpd_->file2_close(&LT1A);
    global_dpd_->file2_close(&LT1B);

    global_dpd_->file2_mat_close(&R1A);
    global_dpd_->file2_mat_close(&R1B);
    global_dpd_->file2_close(&R1A);
    global_dpd_->file2_close(&R1B);

    return;
}

/* This function computes terms of excited Gciab
   term 8  +P(ab) Lmnce Rinae Tmb
   term 9, +P(AB) LMNCE TINAE RMB
*/

void x_Gciab_8_rohf() {
    int h, nirreps, i, j, k, a, I, J, K, A, Isym, Jsym, Ksym, Asym, row, col;
    int II, JJ, IIsym, JJsym;
    int L_irr, R_irr, G_irr;
    double value;
    dpdfile2 L1A, T1A, L1B, T1B, R1A, R1B, I1A, I1B;
    dpdbuf4 G, V, T, L, Z, Z1, Z2, Tau;

    L_irr = params.L_irr;
    R_irr = params.R_irr;
    G_irr = params.G_irr;
    nirreps = moinfo.nirreps;

    /* term 8, +P(AB) LMNCE RINAE TMB */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 10, 5, 10, 5, 0, "Z(IA,BC)");
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, G_irr, 10, 10, 10, 10, 0, "R2L2_OVOV");
    global_dpd_->file2_init(&T1A, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->contract244(&T1A, &V, &Z, 0, 2, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1A);
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, sprq, 11, 5, "Z(CI,BA)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(CI,BA)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "GCIAB");
    global_dpd_->buf4_axpy(&Z, &G, 1.0);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, pqsr, 11, 5, "Z(CI,AB)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(CI,AB)");
    global_dpd_->buf4_axpy(&Z, &G, -1.0);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 8, +P(ab) Lmnce Rinae Tmb */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 10, 5, 10, 5, 0, "Z(ia,bc)");
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, G_irr, 10, 10, 10, 10, 0, "R2L2_ovov");
    global_dpd_->file2_init(&T1A, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->contract244(&T1A, &V, &Z, 0, 2, 1, 1.0, 0.0);
    global_dpd_->file2_close(&T1A);
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, sprq, 11, 5, "Z(ci,ba)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(ci,ba)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "Gciab");
    global_dpd_->buf4_axpy(&Z, &G, 1.0);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, pqsr, 11, 5, "Z(ci,ab)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(ci,ab)");
    global_dpd_->buf4_axpy(&Z, &G, -1.0);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);

    /* term 8, GCiAb -= LmNCe RiNAe tmb */
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, G_irr, 10, 10, 10, 10, 0, "R2L2_oVoV");
    global_dpd_->buf4_sort(&V, PSIF_EOM_TMP1, spqr, 11, 11, "Z(Ci,Am)");
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 11, 11, 11, 0, "Z(Ci,Am)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->file2_init(&T1B, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->contract424(&Z, &T1B, &G, 3, 0, 0, -1.0, 1.0);
    global_dpd_->file2_close(&T1B);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 8, GCiAb -= (LMnCe Rinbe + LMNCE RiNbE) TMA */
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, G_irr, 10, 10, 10, 10, 0, "R2L2_ovOV");
    global_dpd_->buf4_sort(&V, PSIF_EOM_TMP1, sprq, 11, 10, "Z(Ci,Mb)");
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 10, 11, 10, 0, "Z(Ci,Mb)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->file2_init(&T1A, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->contract244(&T1A, &Z, &G, 0, 2, 1, 1.0, 1.0);
    global_dpd_->file2_close(&T1A);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);

    /* term 8, GcIaB -= LMncE RInaE tMB */
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, G_irr, 10, 10, 10, 10, 0, "R2L2_OvOv");
    global_dpd_->buf4_sort(&V, PSIF_EOM_TMP1, spqr, 11, 11, "Z(cI,aM)");
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 11, 11, 11, 0, "Z(cI,aM)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->file2_init(&T1A, PSIF_CC_OEI, 0, 0, 1, "tIA");
    global_dpd_->contract424(&Z, &T1A, &G, 3, 0, 0, -1.0, 1.0);
    global_dpd_->file2_close(&T1A);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 8, GcIaB -= (LmNcE RINBE + Lmnce RInBe) Tma */
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, G_irr, 10, 10, 10, 10, 0, "R2L2_OVov");
    global_dpd_->buf4_sort(&V, PSIF_EOM_TMP1, sprq, 11, 10, "Z(cI,mB)");
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 10, 11, 10, 0, "Z(cI,mB)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->file2_init(&T1B, PSIF_CC_OEI, 0, 0, 1, "tia");
    global_dpd_->contract244(&T1B, &Z, &G, 0, 2, 1, 1.0, 1.0);
    global_dpd_->file2_close(&T1B);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);

    psio_close(PSIF_EOM_TMP1, 0);
    psio_open(PSIF_EOM_TMP1, PSIO_OPEN_NEW);

    /* term 9, +P(AB) LMNCE TINAE RMB */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 10, 5, 10, 5, 0, "Z(IA,BC)");
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, L_irr, 10, 10, 10, 10, 0, "VIAJB");
    global_dpd_->file2_init(&R1A, PSIF_CC_GR, R_irr, 0, 1, "RIA");
    global_dpd_->contract244(&R1A, &V, &Z, 0, 2, 1, 1.0, 0.0);
    global_dpd_->file2_close(&R1A);
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, sprq, 11, 5, "Z(CI,BA)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(CI,BA)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "GCIAB");
    global_dpd_->buf4_axpy(&Z, &G, 1.0);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, pqsr, 11, 5, "Z(CI,AB)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(CI,AB)");
    global_dpd_->buf4_axpy(&Z, &G, -1.0);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 9, +P(ab) Lmnce Tinae Rmb */
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 10, 5, 10, 5, 0, "Z(ia,bc)");
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, L_irr, 10, 10, 10, 10, 0, "Viajb");
    global_dpd_->file2_init(&R1B, PSIF_CC_GR, R_irr, 0, 1, "Ria");
    global_dpd_->contract244(&R1B, &V, &Z, 0, 2, 1, 1.0, 0.0);
    global_dpd_->file2_close(&R1B);
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, sprq, 11, 5, "Z(ci,ba)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(ci,ba)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 7, 0, "Gciab");
    global_dpd_->buf4_axpy(&Z, &G, 1.0);
    global_dpd_->buf4_sort(&Z, PSIF_EOM_TMP1, pqsr, 11, 5, "Z(ci,ab)");
    global_dpd_->buf4_close(&Z);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, G_irr, 11, 5, 11, 5, 0, "Z(ci,ab)");
    global_dpd_->buf4_axpy(&Z, &G, -1.0);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);

    /* term 9, GCiAb -= LmNCe TiNAe Rmb */
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, L_irr, 10, 10, 10, 10, 0, "ViAjB");
    global_dpd_->buf4_sort(&V, PSIF_EOM_TMP1, spqr, 11, 11, "Z(Ci,Am)");
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 11, 11, 11, 11, 0, "Z(Ci,Am)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->file2_init(&R1B, PSIF_CC_GR, R_irr, 0, 1, "Ria");
    global_dpd_->contract424(&Z, &R1B, &G, 3, 0, 0, -1.0, 1.0);
    global_dpd_->file2_close(&R1B);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 9, GCiAb -= (LMnCe Tinbe + LMNCE TiNbE) RMA */
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, L_irr, 10, 10, 10, 10, 0, "ViaJB");
    global_dpd_->buf4_sort(&V, PSIF_EOM_TMP1, sprq, 11, 10, "Z(Ci,Mb)");
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 11, 10, 11, 10, 0, "Z(Ci,Mb)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GCiAb");
    global_dpd_->file2_init(&R1A, PSIF_CC_GR, R_irr, 0, 1, "RIA");
    global_dpd_->contract244(&R1A, &Z, &G, 0, 2, 1, 1.0, 1.0);
    global_dpd_->file2_close(&R1A);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);

    /* term 9, GcIaB -= LMncE TInaE RMB */
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, L_irr, 10, 10, 10, 10, 0, "VIaJb");
    global_dpd_->buf4_sort(&V, PSIF_EOM_TMP1, spqr, 11, 11, "Z(cI,aM)");
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 11, 11, 11, 11, 0, "Z(cI,aM)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->file2_init(&R1A, PSIF_CC_GR, R_irr, 0, 1, "RIA");
    global_dpd_->contract424(&Z, &R1A, &G, 3, 0, 0, -1.0, 1.0);
    global_dpd_->file2_close(&R1A);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);
    /* term 9, GcIaB -= (LmNcE TINBE + Lmnce TInBe) Rma */
    global_dpd_->buf4_init(&V, PSIF_EOM_TMP, L_irr, 10, 10, 10, 10, 0, "VIAjb");
    global_dpd_->buf4_sort(&V, PSIF_EOM_TMP1, sprq, 11, 10, "Z(cI,mB)");
    global_dpd_->buf4_close(&V);
    global_dpd_->buf4_init(&Z, PSIF_EOM_TMP1, L_irr, 11, 10, 11, 10, 0, "Z(cI,mB)");
    global_dpd_->buf4_init(&G, PSIF_EOM_TMP0, G_irr, 11, 5, 11, 5, 0, "GcIaB");
    global_dpd_->file2_init(&R1B, PSIF_CC_GR, R_irr, 0, 1, "Ria");
    global_dpd_->contract244(&R1B, &Z, &G, 0, 2, 1, 1.0, 1.0);
    global_dpd_->file2_close(&R1B);
    global_dpd_->buf4_close(&G);
    global_dpd_->buf4_close(&Z);

    return;
}

}  // namespace ccdensity
}  // namespace psi
